Backreaction in the Lemaitre-Tolman-Bondi model

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dc.creatorRasanen, Syksy
dc.date2004-08-31
dc.date2004-12-01
dc.date.accessioned2026-07-07T10:48:16Z
dc.date.available2026-07-07T10:48:16Z
dc.descriptionWe study backreaction analytically using the parabolic Lemaitre-Tolman-Bondi universe as a toy model. We calculate the average expansion rate and energy density on two different hypersurfaces and compare the results. We also consider the Hubble law and find that backreaction slows down the expansion if measured with proper time, but speeds it up if measured with energy density.
dc.description11 pages, JCAP-style. v2: Published version. One added reference, no major changes
dc.identifierhttps://arxiv.org/abs/gr-qc/0408097
dc.identifierhttp://arxiv.org/abs/gr-qc/0408097
dc.identifierJCAP0411:010,2004
dc.identifierdoi:10.1088/1475-7516/2004/11/010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183816
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleBackreaction in the Lemaitre-Tolman-Bondi model
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